Power chip targets quad-core ARM processors

LONDON – A multi-output power management IC (PMIC) from Dialog Semiconductor is said to be the most highly integrated PMIC for ARM quad- and dual-core application processors.

Dialog said its DA9063 (PMIC supports quad-core Cortex-A15 and Cortex-A9 processors. However, the chip does not supply enough outputs to fully support an Intel Atom mobile processor design, according to Charles Limonard, marketing manager at Dialog. "Because this PMIC can support up to quad-core A15s, we could also support [ARM's big-little chips set], although we haven't yet proved it on a PCB," said Limonard.

The DA9063 can deliver up to 12A from its six dc/dc converters and can power the processor, GPU, external memories, wireless communications, GPS and FM receivers, as well as data modems. The dc/dc converters also can be configured in parallel to provide 3A and 5A rails for use in smartphones, tablet computers and for embedded applications.

It comes in an 8-mm by 8-mm BGA package. The DA9063 also includes 11 low drop-out regulators, 16 GPIOs and two rail switches. Start-up sequences, output voltages and voltage ramps can be programmed using graphical input software called Power Commander.

The PMIC maximizes battery life via dynamic voltage scaling, a feature not available with discrete devices. A multimode buck converter runs at 3-MHz switching frequency, enabling the use of 1-mm high inductors.

Voltage supply ranges from 2.7V to 5.5V, enabling the use of single-cell lithium-ion batteries as well as a standard 5V supply or a USB power supply.

The DA9063 is manufactured in a standard 180-nm CMOS manufacturing process by Taiwan Semiconductor Manufacturing Co. It is priced at $3.99 in 1,000 piece quantities. The price is expected to be lower for higher production volumes, Dialog said.